No idea why people would think it's small. They said in Alpha there was about 10% of the game world, the only time anything's been added to that is Open Beta. So if Alpha had 10% with one of the major cities, I'd guess now there's probably 30-40% of the game in Open Beta. Also 30 is set as the max level now. You might want to consider that in the FFXI beta 35 was max level, and I believe 50 was max at release.